body{
    width: 100%;
    height: 100%;
    flex-direction: column;
}
main{
    position: relative;
    flex: 1;
    background: black;
}
footer{
    width: 100%;
    height: 8rem;
}
.video{
    position: absolute;
    top: calc(50% - 15rem);
    width: 100%;
    height: 30rem;
}
video{
    width: 100%;
    height: 30rem;
}
.video_text{
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    color: #fff;
    font-size: 2rem;
}
.video_num{
    position: absolute;
    bottom: 5rem;
    left: 2rem;
    color: #fff;
    font-size: 4.5rem;
}
.progress{
    width: 100%;
    height: 1rem;
    background:#4294ff; 
}
.iconfont{
    color: #333;
    font-size: 4rem;
    line-height: 7rem;
}
.i_box{
    justify-content: space-around;
}
.icon-xiangzuo1{
    position: absolute;
    top: 2rem;
    left: 2rem;
    color: #fff;
}

.modal{
    display: none;
    position: fixed;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgb(30, 150, 205,0.8)
}
.continue{
    width: 30rem;
    height: 6rem;
    border-radius: 1.5rem;
    text-align: center;
    line-height: 6rem;
    font-size: 1.8rem;
    background: rgb(121, 240, 194);
}
.end{
    width: 30rem;
    height: 6rem;
    margin-top: 3rem;
    border-radius: 1.5rem;
    text-align: center;
    line-height: 6rem;
    font-size: 1.8rem;
    background: rgb(255, 96, 96);
}
.modal_btn{
    position: absolute;
    top: 50%;
    left:50%;
    transform: translate(-50%,-50%);
}
.modal_text{
    color: #fff;
    font-size: 1.8rem;
    text-align: center;
    margin-top: 3rem;
}
.come_on{
    font-size: 2.5rem;
    margin-top: 2rem;
    text-align: center;
    color: antiquewhite;
    letter-spacing:1rem;
}
.modal_box{
    position: absolute;
    top: 70% ;
    left: 14%;
    width: 30rem;
    height: 10rem;
    border:2px solid #ccc;
    border-radius: 1rem;
}
.modal_img{
    width: 15rem;
    height: 10rem;
}
.modal_img img{
    width: 15rem;
    height: 9.6rem;
    border-radius: 1rem;
}
.modal_tit{
    flex: 1;
    flex-direction: column;
    align-content: center;
    text-align: center;
    margin-top: 2rem;
    color: #ccc;
    font-size: 1.4rem;
}
.sport_name{
    color:#fff;
    font-size: 1.6rem;
    margin-top: 1.5rem;
}